TY  - GEN
AU  - Wendland,W.L
TI  - Elliptic systems in the plane
T2  - Monographs and studies in mathematics ; 3
SN  - 0273010131
PY  - 1979///
CY  - London, San Francisco
PB  - Pitman
KW  - Differential equations, Elliptic
KW  - Boundary value problems
N1  - Cuprinde bibliografie si index
ER  -